Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Development mailing list

Subject: [OMPI devel] barrier before calling del_procs
From: Yossi Etigin (yosefe_at_[hidden])
Date: 2014-07-21 11:21:29


Hi,

We get occasional hangs with MTL/MXM during finalize, because a global synchronization is needed before calling del_procs.
e.g rank A may call del_procs() and disconnect from rank B, while rank B is still working.
What do you think about adding an MPI barrier on COMM_WORLD before calling del_procs()?